参数资料
型号: MAX708RESA-TG
厂商: ON Semiconductor
文件页数: 6/10页
文件大小: 0K
描述: IC MPU SUPERVISORY 2.63V 8SOIC
标准包装: 2,500
类型: 简单复位/加电复位
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 高有效/低有效
复位超时: 最小为 140 ms
电压 - 阀值: 2.63V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 带卷 (TR)
其它名称: MAX708RESA-TGOS
MAX707, MAX708
APPLICATIONS INFORMATION
Microprocessor Reset
To generate a processor reset, the manual Reset input
allows different reset sources. A pushbutton switch can be
one of these. It is effectively debounced by the 1.0 m s
minimum reset pulse width. As MR is TTL/CMOS logic
compatible, it can be driven by an external logic line.
V CC
V TH
V TH
RESET
t RP
t RP
MR
t MD
t MR
Figure 12. RESET and MR Timing
V CC Transient Rejection
The MAX707/708 provides accurate V CC monitoring and
reset timing during power?up, power?down, and
brownout/sag conditions, and rejects negative glitches on
the power supply line. Figure 13 shows the maximum
transient duration vs. maximum negative excursion
300
250
200
V TH = 4.90 V
150
V TH = 3.08 V
100
V TH = 1.60 V
50
0
(overdrive) for glitch rejection. For a given overdrive, the
point of the curve is the maximum width of the glitch
allowed before the device generates a reset signal. Transient
immunity can be improved by adding a capacitor (100 nF for
example) in close proximity to the V CC pin of the
MAX707/708.
V CC
V TH
Overdrive
Duration
10
30
50
70
90
110
130
150
RESET COMPARATOR OVERDRIVE (mV)
Figure 13. Maximum Transient Duration vs.
Overdrive for Glitch Rejection at 25 5 C
http://onsemi.com
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MAX708REUA 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX708REUA+ 功能描述:监控电路 Single uPower Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX708REUA+T 功能描述:监控电路 Single uPower Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX708REUA-T 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX708RMJA 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel